380 lines
12 KiB
JavaScript
380 lines
12 KiB
JavaScript
import { html, render, ifDefined } from '@lion/core';
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import { LionInputDate } from '@lion/input-date';
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import { overlays, ModalDialogController } from '@lion/overlays';
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import { Unparseable, isValidatorApplied } from '@lion/validate';
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import '@lion/calendar/lion-calendar.js';
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import './lion-calendar-overlay-frame.js';
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/**
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* @customElement
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* @extends {LionInputDate}
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*/
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export class LionInputDatepicker extends LionInputDate {
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static get properties() {
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return {
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...super.properties,
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/**
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* The heading to be added on top of the calendar overlay.
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* Naming chosen from an Application Developer perspective.
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* For a Subclasser 'calendarOverlayHeading' would be more appropriate
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*/
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calendarHeading: {
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type: String,
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attribute: 'calendar-heading',
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},
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/**
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* The slot to put the invoker button in. Can be 'prefix', 'suffix', 'before' and 'after'.
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* Default will be 'suffix'.
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*/
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_calendarInvokerSlot: {
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type: String,
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},
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/**
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* TODO: [delegation of disabled] move this to LionField (or FormControl) level
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*/
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disabled: {
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type: Boolean,
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},
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__calendarMinDate: {
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type: Date,
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},
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__calendarMaxDate: {
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type: Date,
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},
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__calendarDisableDates: {
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type: Function,
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},
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};
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}
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get slots() {
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return {
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...super.slots,
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[this._calendarInvokerSlot]: () => this.__createPickerAndReturnInvokerNode(),
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};
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}
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static get localizeNamespaces() {
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return [
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{
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/* FIXME: This awful switch statement is used to make sure it works with polymer build.. */
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'lion-input-datepicker': locale => {
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switch (locale) {
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case 'bg-BG':
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return import('../translations/bg-BG.js');
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case 'bg':
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return import('../translations/bg.js');
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case 'cs-CZ':
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return import('../translations/cs-CZ.js');
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case 'cs':
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return import('../translations/cs.js');
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case 'de-DE':
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return import('../translations/de-DE.js');
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case 'de':
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return import('../translations/de.js');
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case 'en-AU':
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return import('../translations/en-AU.js');
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case 'en-GB':
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return import('../translations/en-GB.js');
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case 'en-US':
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return import('../translations/en-US.js');
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case 'en-PH':
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case 'en':
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return import('../translations/en.js');
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case 'es-ES':
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return import('../translations/es-ES.js');
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case 'es':
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return import('../translations/es.js');
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case 'fr-FR':
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return import('../translations/fr-FR.js');
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case 'fr-BE':
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return import('../translations/fr-BE.js');
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case 'fr':
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return import('../translations/fr.js');
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case 'hu-HU':
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return import('../translations/hu-HU.js');
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case 'hu':
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return import('../translations/hu.js');
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case 'it-IT':
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return import('../translations/it-IT.js');
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case 'it':
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return import('../translations/it.js');
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case 'nl-BE':
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return import('../translations/nl-BE.js');
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case 'nl-NL':
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return import('../translations/nl-NL.js');
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case 'nl':
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return import('../translations/nl.js');
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case 'pl-PL':
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return import('../translations/pl-PL.js');
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case 'pl':
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return import('../translations/pl.js');
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case 'ro-RO':
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return import('../translations/ro-RO.js');
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case 'ro':
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return import('../translations/ro.js');
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case 'ru-RU':
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return import('../translations/ru-RU.js');
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case 'ru':
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return import('../translations/ru.js');
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case 'sk-SK':
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return import('../translations/sk-SK.js');
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case 'sk':
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return import('../translations/sk.js');
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case 'uk-UA':
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return import('../translations/uk-UA.js');
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case 'uk':
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return import('../translations/uk.js');
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case 'zh-CN':
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case 'zh':
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return import('../translations/zh.js');
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default:
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return import(`../translations/${locale}.js`);
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}
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},
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},
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...super.localizeNamespaces,
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];
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}
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get _invokerElement() {
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return this.querySelector(`#${this.__invokerId}`);
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}
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get _calendarOverlayElement() {
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return this._overlayCtrl._container.firstElementChild;
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}
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get _calendarElement() {
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return this._calendarOverlayElement.querySelector('#calendar');
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}
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constructor() {
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super();
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this.__invokerId = this.__createUniqueIdForA11y();
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this._calendarInvokerSlot = 'suffix';
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// Configuration flags for subclassers
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this._focusCentralDateOnCalendarOpen = true;
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this._hideOnUserSelect = true;
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this._syncOnUserSelect = true;
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this.__openCalendarOverlay = this.__openCalendarOverlay.bind(this);
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this._onCalendarUserSelectedChanged = this._onCalendarUserSelectedChanged.bind(this);
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}
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__createUniqueIdForA11y() {
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return `${this.localName}-${Math.random()
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.toString(36)
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.substr(2, 10)}`;
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}
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/**
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* Problem: we need to create a getter for disabled that puts disabled attrs on the invoker
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* button.
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* The DelegateMixin creates getters and setters regardless of what's defined on the prototype,
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* thats why we need to move it out from parent delegations config, in order to make our own
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* getters and setters work.
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*
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* TODO: [delegation of disabled] fix this on a global level:
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* - LionField
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* - move all delegations of attrs and props to static get props for docs
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* - DelegateMixin needs to be refactored, so that it:
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* - gets config from static get properties
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* - hooks into _requestUpdate
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*/
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get delegations() {
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return {
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...super.delegations,
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properties: super.delegations.properties.filter(p => p !== 'disabled'),
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attributes: super.delegations.attributes.filter(p => p !== 'disabled'),
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};
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}
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/**
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* TODO: [delegation of disabled] move this to LionField (or FormControl) level
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*/
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_requestUpdate(name, oldValue) {
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super._requestUpdate(name, oldValue);
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if (name === 'disabled') {
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this.__delegateDisabled();
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}
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if (name === 'disabled' || name === 'readOnly') {
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this.__toggleInvokerDisabled();
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}
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}
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/**
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* TODO: [delegation of disabled] move this to LionField (or FormControl) level
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*/
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__delegateDisabled() {
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if (this.inputElement) {
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this.inputElement.disabled = this.disabled;
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}
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}
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__toggleInvokerDisabled() {
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if (this._invokerElement) {
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this._invokerElement.disabled = this.disabled || this.readOnly;
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}
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}
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/**
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* TODO: [delegation of disabled] move this to LionField (or FormControl) level
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*/
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firstUpdated(c) {
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super.firstUpdated(c);
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this.__delegateDisabled();
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this.__toggleInvokerDisabled();
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}
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/**
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* @override
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* @param {Map} c - changed properties
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*/
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updated(c) {
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super.updated(c);
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if (c.has('errorValidators') || c.has('warningValidators')) {
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const validators = [...(this.warningValidators || []), ...(this.errorValidators || [])];
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this.__syncDisabledDates(validators);
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}
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if (c.has('label')) {
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this.calendarHeading = this.calendarHeading || this.label;
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}
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}
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_calendarOverlayTemplate() {
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return html`
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<lion-calendar-overlay-frame>
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<span slot="heading">${this.calendarHeading}</span>
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${this._calendarTemplate()}
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</lion-calendar-overlay-frame>
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`;
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}
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/**
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* Subclassers can replace this with their custom extension of
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* LionCalendar, like `<my-calendar id="calendar"></my-calendar>`
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*/
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// eslint-disable-next-line class-methods-use-this
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_calendarTemplate() {
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return html`
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<lion-calendar
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id="calendar"
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.selectedDate="${this.constructor.__getSyncDownValue(this.modelValue)}"
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.minDate="${this.__calendarMinDate}"
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.maxDate="${this.__calendarMaxDate}"
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.disableDates="${ifDefined(this.__calendarDisableDates)}"
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@user-selected-date-changed="${this._onCalendarUserSelectedChanged}"
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></lion-calendar>
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`;
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}
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/**
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* Subclassers can replace this with their custom extension invoker,
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* like `<my-button><calendar-icon></calendar-icon></my-button>`
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*/
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// eslint-disable-next-line class-methods-use-this
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_invokerTemplate() {
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// TODO: aria-expanded should be toggled by Overlay system, to allow local overlays
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// (a.k.a. dropdowns) as well. Important: will be breaking for subclassers
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return html`
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<button
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type="button"
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@click="${this.__openCalendarOverlay}"
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id="${this.__invokerId}"
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aria-haspopup="dialog"
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aria-expanded="false"
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aria-label="${this.msgLit('lion-input-datepicker:openDatepickerLabel')}"
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title="${this.msgLit('lion-input-datepicker:openDatepickerLabel')}"
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>
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📅
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</button>
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`;
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}
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__createPickerAndReturnInvokerNode() {
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const renderParent = document.createElement('div');
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render(this._invokerTemplate(), renderParent);
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const invokerNode = renderParent.firstElementChild;
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// TODO: ModalDialogController should be replaced by a more flexible
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// overlay, allowing the overlay to switch on smaller screens, for instance from dropdown to
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// bottom sheet (working name for this controller: ResponsiveOverlayController)
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this._overlayCtrl = overlays.add(
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new ModalDialogController({
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contentTemplate: () => this._calendarOverlayTemplate(),
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elementToFocusAfterHide: invokerNode,
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}),
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);
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return invokerNode;
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}
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async __openCalendarOverlay() {
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this._overlayCtrl.show();
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await Promise.all([
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this._calendarOverlayElement.updateComplete,
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this._calendarElement.updateComplete,
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]);
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this._onCalendarOverlayOpened();
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}
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/**
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* Lifecycle callback for subclassers
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*/
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_onCalendarOverlayOpened() {
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if (this._focusCentralDateOnCalendarOpen) {
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this._calendarElement.focusCentralDate();
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}
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}
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_onCalendarUserSelectedChanged({ target: { selectedDate } }) {
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if (this._hideOnUserSelect) {
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this._overlayCtrl.hide();
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}
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if (this._syncOnUserSelect) {
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// Synchronize new selectedDate value to input
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this.modelValue = selectedDate;
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}
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}
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/**
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* The LionCalendar shouldn't know anything about the modelValue;
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* it can't handle Unparseable dates, but does handle 'undefined'
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* @returns {Date|undefined} a 'guarded' modelValue
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*/
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static __getSyncDownValue(modelValue) {
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return modelValue instanceof Unparseable ? undefined : modelValue;
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}
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/**
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* Validators contain the information to synchronize the input with
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* the min, max and enabled dates of the calendar.
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* @param {Array} validators - errorValidators or warningValidators array
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*/
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__syncDisabledDates(validators) {
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// On every validator change, synchronize disabled dates: this means
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// we need to extract minDate, maxDate, minMaxDate and disabledDates validators
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validators.forEach(([fn, param]) => {
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const d = new Date();
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if (isValidatorApplied('minDate', fn, d)) {
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this.__calendarMinDate = param;
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} else if (isValidatorApplied('maxDate', fn, d)) {
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this.__calendarMaxDate = param;
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} else if (isValidatorApplied('minMaxDate', fn, { min: d, max: d })) {
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this.__calendarMinDate = param.min;
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this.__calendarMaxDate = param.max;
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} else if (isValidatorApplied('isDateDisabled', fn, () => true)) {
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this.__calendarDisableDates = param;
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}
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});
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}
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}
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